Printing-telegraph receiver.



No. 760,611; PATENTED MAY 2 1904.

e. A. GARDWELL.

PRINTING TELEGRAPH RECEIVER? I APPLIUATION FILED'APR; 11, 1903. N0 MODEL.

1 sums-sum 1.

No. 760,611. 'PATENTED MAY 24, 1904. E

G. A. GARDWELL.

PRINTING TELEGRAPH RECEIVER. APPLIOATION FILED APR.11, 1903. no 110mm. 7 snnnrssnnm 2.

Nor 760,611. PAT-EDITED MAY 24, 1904.

G. A. OARDWELL. v

PRINTING TELEGRAPH RECEIVER.

APPLIOATION FILE-D A PIL II, 1903.

N0 MODEL.

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10 MODEL} G. A. GARDWELL. PRINTING TELEGRAPH RECEIVER.

APPLICATION I'ILED APR.11,1903.

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PATENTBD, MAY 24, 1904.

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PATENTED MAY 24, 1904.

. G. A GARDWELL. PRINTING TELEGRAPH RECEIVER.

APPLICATION FILED APR. 11. 1903.

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e. A. GARD'WELL. PRINTING TELEGRAPH RECEIVER.

APPLICATION FILED APR.11, 1903.

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THE NORRIS PETERS co. PNUTO-LITHQ, wnsumm'on, a. c.

.No. 760,611; PATENIED MAY 24, 1904., G. A.'0ARDWELL.

PRINTING TELEGRAPH RECEIVER.

. APPLICATION FILED :APR. 11,- 1903. R0 MODEL.

7 SHEETS-SHEET 7- GEORGEALEXANDER CARDWELL, OF-NEW- YORK, N. Y.,YASSIGNYOR TC Patented May 24,1904.

FREDERIG J. SWIFT, TRUSTEE, or NEW- YORK, N. v.1

PRIN ING-TELEGRAPH RECEIVER. f

sP eiEIoATIoN forming-part of Letters Patent'No. 760,611, dated May 24,1901; 1

Application filed A ril 11,1903.

-T all w/wmit may concern:

Be it known that I, GEORGE ALEXANDER CARDWELL, a citizen of the United States, and a resident of thefborough of'Manhattan, city, county, and State of New York, have invented certain new and useful Improvements in Printing-Telegraph Receivers, of whichthe following is a specification accompanied by draw- My invention relates to printing-telegraph receivers of the class known as page-printers; and the objects of my invention are to improve upon the construction of such receivers, increase the rate of speed at which the machine may be worked, and produce an im proved com pact-and strong instrument of high efficiency which is not liable toget out of order. Another object of my invention is to increase the accuracy with which the printing and spacing are done. a g

Further objects will hereinafter appear; and to these ends my inventionconsists in apparatus for carrying out the above objects and embodying the features of construction, combinations of elements, and arrangements of parts having the general mode of operation I substantially as hereinafter fullydescribed and claimed in this specification, and shown 1n the accompanylng drawings, in wh1ch Flgure 1 1s a side" elevatlon, partly in section and partly broken away,.of 'a-machineembodying my invention. Fig. 2 is a rear elevation of the same with partsof the frame broken away. Fig. 3 is -a plan view of the machine. line 1 1 of F ig. 1, showing the arrangement of the letter-selecting magnets. Fig. 5is an. enlarged detail longitudinal sectional view of the central hub or frame of the machine. Fig. 6 isa plan View on the line 5 f Fig. 5. Fig. 7 is a detail sectional view taken through the type-wheel at: upper portion of the central type-wheel shaft. Fig. 8 is' ade tail view, partly broken away, ofa portion of the paper carriage feeding and retracting mechanism. Fig. 9is an enlarged'detailview of the shaft and connecting parts for actuating the printing-hammer. Fig. 10 is-a separate detail View, partly broken away, of the the dash-pot for the paper-carriage.

the parts in a different position.

Fig. 4 is adetail plan view on the Serial No. 152,202. (N0 model.)

winding mechanism for placing the central.

vertical type-wheel shaft of the machine un- 13. is a detail plan view of a portion of the mechanism shown in Fig.-12.- Fig. letis a detail sectional view on-the line 3 3 of Fig. 13. Fig. 15 is an enlargeddetail sectional view of Fig. 16 is a detail front elevation ofthe paper-carriage. tional detail view on the line 4 4:.of Fig. 16

looking in the direction of the arrow. Fig.

18 is a view similar to Fig. 17, but showing Fig. 19 is a transverse vertical sectional view on the line 5 5 of Fig. 16 lookingin the direction of the arrow. Fig. 20 is a detail sectionalview on-v the line 6 6 of Fig. 16; and Fig. 21 is a view like Fig. 20, but showing the parts in a different position. M

Referring to the drawings, upon a suitable base A is arranged a frame B, shown in this instance as substantially circular, upon which are pivoted the lovers G, controlled by the let- 'ter-selectingmagncts D, shown as arranged in a circle about the frame B and adapted to attract the outer ends of the levers C and press upwardly one at a time the pins E, which normally lie flush with the topofthe plate F,-but

are adapted to be projected beyond the same- Fig. 17 is atransverse vertical secswept over the plate F, with the-type-wheel shaftas a pivot.

The type-wheel I is secured to,the central shaft H, shown in this instance as hollow and adapted to be placed under a constant stress tending to rotate the same, the shaft and typewheel I being held from rotation bythe'arm G and that pin E which is in a raised position. As the raised pin E is released and falls to its normal position flush with the top of theplalte F another pin E is moved upwardly and the arm Gr is allowed to rotate through a portion of a revolution until again brought to a stop,

. thus affording means for selecting the desired letter on the type-Wheel I and bringing said letter into position opposite the hammer J in order that printing may be effected.

Although any desired number of characters may be provided upon the type-wheel I, in this instance I have shown twenty-eight characters, and the wheel is controlled by twentyeight letter-selecting magnets D. Suitable circuits and connections for controlling the operation of the saidmagnets and for controlling the various magnets utilized in my improved receiver may be provided, as hereinafter referred to.

Suitable means may be provided for placing the type-wheel shaft H, carrying the typewheel 1, under a constant stress, as shown in this instance a suitable magnet K, supported upon the frame of the machine, being arranged to wind a spring mechanism by a step-by-step motion. Each time that the magnet K is energized it attracts its armature (6 against the tension of the spring 6 and rotates theratehetwheel 0, Fig. 10, by means of the pawl d, the stop-pawl e'being provided to hold the ratchetwheel in theposition to which it is moved. Within the drum f, connected to the ratchetwheel 0, is a spring g, adapted to be wound up as the ratchet-wheel is rotated. The spring g tends to rotate the gear-wheel it in an opposite direction to the movement of the ratchetwheel 0, a pinionc' meshing with the gear It and also with another gear, j, at one'end of a shaft in, which extends longitudinally of the machine. A bevel-gear Z is secured to the other end of said shaft is and meshes with a bevel-gear 0 on the central vertical shaft H of the machine, whereby. said shaft H is under a constant stress due to the spring 7. Each time that a letter is printed the winding-magnet K is energized, and the spring 9 is therefore kept in a constant state of tension.

A central vertically-movable shaft L is arranged within the hollow type-wheel shaft H,

.and the type-wheel I is secured to said shaft L, the outer hollow shaft H being provided with a vertically-extending pin p, Fig. 7, passing through an aperture in the web of the type-wheel 1, whereby rotation of the outer hollow shaft H will cause rotation of the wheel I, which may or may not be fast to the central shaft L, in this instance the type-wheel being shown secured to the shaft L, as by means of a pin q.

The revol'uble arm G is connected by any suitablemeans to rotate with the shaft H, and in Figs. 5, 11, 12, 13, and 14 the operation of the letter-selecting mechanism is illustrated on an enlarged scale. A supporting hub or member 0 is provided centrally of the machine upon the base A and affords a support or bearing for the operative parts of the machine. This supporting member 0 is shouldered, as at r, and provided with a horizontal plate 8, secured upon the shoulders 1', as by means of the screws t. Another plate 1/ is arranged above the plate a and connected thereto by elastic means, as shown, a spring 11, Fig. 6, being attached at one end to the upper movable plate u and at the other end to the lower fixed plate s, whereby the upper plate may have a slight rotary movement relatively to the lower plate. The plate F is shown as suitably secured to the central hub or member O, as by means of the screws w, and the pins E pass through apertures in the plates s, 'u, and F and are adapted to be projected upwardly to extend beyond the upper surface of the plate and form stops for the arm G. One pin is normally in a raised position, tending to hold the arm G from rotation, while the remainder of the pins are normally in a lowered position, and according to my invention the raised pin and all of the lowered pins are locked in such position, means being provided for raising any one pin, as desired, and lowering that pin which is in-a raised position and then again locking the pins. As shown in the drawings, the movable plate a is provided with apertures somewhat larger than the apertures in the plates .Q and F, while the pins E are all provided with collars .1, adapted to pass through the apertures in the plate a, suitable springs 3 being arranged upon each pin E between the plate F and the collars a, whereby each pin is normally pressed into its lowermost position, with the collar in resting upon the lower plate 8. The spring secured to both the plates at and s, is adjusted to maintain normally the apertures in the movable plate aout which are in their lowermost position and also out of alinement with the collar :1: on that pin E which is in a raised position, so that the pins are all looked in position. As shown in the drawings, the collars m are provided with upper beveled edges, so that when a letter-selecting magnet D is energized, thus attracting its armature C and pressing one of the pins E upwardly, the beveled edge of the collar a on the pin attracted bears against the inner edge of the aperture in theplate a over the collar :0 and tends to aline said aperture with the collar to permit the pin and collar to be raised through the aperture. Iln order to vary the tension of the spring 1; and the relative positions of the plates 11 and a, another aperture .2 is provided in the upper plate 16, and an eccentrically-mounted pin 1, secured to the lower plate s, projects into the aperture and is provided with a slotted head, whereby the position of said head may be changed relatively to the plate at to vary the tension of the spring 4). In order to insure the alinement of the apertures in the plate a with the collars a on the pins E, positive means are provided for accomplishing this end, although said positive means are auxiliary in their action and, if desired, need not be used. Ac-

cording to the construction shown a vertical of alinement with the collars a? on those pins E pin 2, Fig. 5, eictends through the base-the machine and in this instance through the centralhub O, the plates, and theplate a and is provided witha beveled head 3, adaptedto a beveled or tapering aperture 4 in the -mov-' able plate a, said aperture'4 being set ecoenr tricallyto the head 3, whereby when the pin 2 is pressed downwardly the aperture 4' will be brought into alinement with the .head of the pin2'and the plate a will be moved slightly against the tension of "the spring a; to bring the apertures in said plate in alinement above the collars 00 on the pins Eto permit one'of said pins to be raised and another .one to belowered. A suitable coiled spring 5 normally tends to maintainlthe pin 2 in a raised position, while electromagnetic means are provided for. pressing thepin downward.

As shown in the drawings, the magnet P, which may be termed a trip-magnet, is used for operating the pin 2, and when said magnet is energized-its armature 6 is attracted I against the tension of the spring 7 and atrip 8 is pressed againsta collar. 9 on the pin-2, pulling said pin downward. .The trip 8 is spring-pressed by a flat'spring 10 and held normally in position to strike against the collar 9, and in order that stickingmay not take place a stop 11 is provided, against which one end of the trip 8 strikes at the end of the movement of the armature 6, rockingsaid trip upon its pivot 12, releasing the pin 2,

which is then permitted to move upwardly again under the action ofthe spring 5.

According to" my construction a printingmagnet isprovidedfor" printing from the type-wheel, and as its armature is attracted I the printing takes place,-- while upon the back stroke of said armature fa retracting-spring for the paper-carriage is wound step by step and at the same time the inking-ribbon is fed step by step. Another magnet is utilized" to release the paper-carriage spring to return the carriage for the beginning of a line.

As shown in the drawings, the magnet Q is termed a ,f printing-magnet and is suitably supported upon the-frame of the machine and arranged to com-01am armature 13, pivoted, as at 14, and pivotally connected at its other end to the rod '15, extending transversely of thefmachinelrf. The rod 15 is pro vided with a slot 16 and hung upon a pin 17 projecting from the arm 18, which is con- Means are providedfor yieldingly striking the hammer J against the 'type wheel andfor g quickly retracting the hammer from the typewheel after the printing has been done, and 1 referring more particularly to Fig. 9, the 001 lar 21 is fast to the shaft '19, and there is a sleeve 22 loose on said shaft and extending to the collar 21, but not connected thereto. The

23 is connectedto the collar' 21 andto' the I hammer J is faston the sleeve 22, and afspring V hammer J, wherebywhen the shaft 19 is re.-

tated to throw the hammer against the print] ing-wheel there will be a certain give to the hammer'owing to the spring connection at 23. The collar 24 is fast to the shaft-'19 and is connected with theframe of the machine by a spring 25. The shaft'19 also carries a,stop26,

- and there is a stop 27 fast to the sleeve 22,1 so 'that when the shaft 19 is-rotated or rocked to I cause the printing the stop 27 bearsagain'st 5 the stop 26 and both are carried in the samedistress. When'the hammer J is released after rection, the spring 25 being placed under a the operation of the printing, the tension of the i 26 together with the stop 27, thereby withcause the printing a pawl 28, pivoted to the end of said rod,'moves past the teeth on the horizontal ratchet-wheel 29; but on the backward spring 25 tends to rotate the shaft 19 and stop 9 drawingthe hammer J from the printingj wheel. As the rod 15 is moved longitudinally to l stroke of the rod 15 when the printing-magnet Q is deenergized the pawl 28 engages a tooth ofthe ratchet-wheel 29 and rotates said wheel to wind up the spring "30, Fig. 8, in the drum 31. The ratchet-wheel 29. is loose upon the shaft 32 and connected to the clutch TOO member 33, adapted to engage thecl'utch member 34, connected to Wind up thespring v '30. The spring-drum'3l is provided with a.

gear 35, meshing witha rack'36 'on the paper carriage. 'Each time that the armature 13 of the printing-magnet Q is attracted the horizontal ratchet-wheel 29 is moved one step, the gear 35 is rotated, and the paper-carriage fed forward one space for letter-spacing.

' Suitable means are provided forthrowing.

paper-carriage to be returned under the influence of the spring-drum 31, as shown, a carriage-return magnet R being arranged to control an armature 37, provided with a pin.

38,'adapted to the groove 39 in the clutch out the clutch 33 34 and thus permitting the member 33, so that when said magnet R is energized, attracting its armature 37 theclutch member 33 will be separated from the clutch member 34 and the paper-carriage will i be returned under the influence of. the springdrum 31. When the magnet R is deener gized, its armature 37 is retracted by a suite able spring 40, the tension of which may be adjusted by means of theadjusting-s'crews 41. Means are provided for feeding theinking: ribbon-49 and thereby moving a fresh portion of the same opposite the type-wheel after each impression, in this instance the feeding of the inking-ribbon being accomplished as the rod 15 is returned to normal position. A spring-pressed pawl 42 is pivoted upon said rod 15 and adapted toengage a ratchet-wheel 43 on a shaft 44, suitably supported from the frame of the machine and extending from side to side thereof. At eachend of the shaft 44 are secured worm-wheels 45, meshing with gears 46 on vertically-extending shafts 47, to which are secured the rollers 48, over which the inking-ribbon 49 is rolled.

The paper-carriage P is adapted to be moved from side to side of the machine and is provided with rods 50, adapted to slide on the rollers 51, suitably supported in the frame of the machine. The paper-carriage carries a roll of paper 52, which passes between the feed-roller 53 and the idle roller 54. Means are provided for feeding the paper for linespacing, and according to my construction a paper-feeding magnet S, Fig. 3, is provided, controlling an armature 55, pivoted at its lower end and to which is pivotally attached a link 56, pivoted to a bent lever 57. The bent lever 57 is pivoted at 58 on the frame of the machine and extends over a bar 59, Fig. 16, vertically movable in suitable bearings on the paper-carriage and connected to actuate a vertically-movable rack 60, meshing with a pinion 61 on the shaft of the feed-roller 53. When the paper-feeding magnet is energized, attracting its armature, it will be seen that the rod 59 will be pressed downward and the pinion 61 will be rotated, connections being provided for rotating the feed-roller 53 to feed the paper a distance of a space between two lines. When the magnetS is deenergized and its armature is retracted, the rack 60 is permitted to rise under the influence of a suit able spring 62, and in this instance means are provided whereby the rack may move upwardly and rotate the pinion 61 in an opposite direction to that in which it was rotated before without rotating the feed-roller 53. The feed-roller 53 is loose upon the shaft 63 and has secured thereto a ratchet-wheel 64, while an arm 65 is fast upon the shaft 63 and is provided with a pawl 66, adapted to cooperate with the ratchet-wheel 64 and rotate the same, thereby rotating the feed-roller when the rack 60 is moved downward. A suitable stop-pawl 67 is provided for cooperating with the ratchet-wheel 64. According to this construction it will be seen that the rack may move upward without rotating the feedroller 53. It is very desirable to prevent the paper being fed more than the desired space for one line, and according to my invention means are provided for preventing the paper from being fed beyond the distance of one space at a time, as shown, a stop-pawl 68 being provided in this instance at the opposite end of the paper-carriage from that in which the rack is located. The stop-pawl 68 is normally spring-pressed out of engagement with the ratchet-wheel 64, fast to the feed-roller 53 at that end of the paper-carriage; but as the shaft 59 is pressed downward it will be seen that the parts are so arranged that the stop-pawl 68 will be pressed into position to cooperate with the teeth on the ratchet-wheel 64, whereby said ratchet-wheel may not be moved beyond a certain distance, and according to my construction the feed-roller may not be rotated through a greater distance than that between two teeth on the ratchet-wheel 64. The remainder of the construction at the opposite end of the [)tLDGP-Cllllilgf) is similar to that already described for the end at which the rack is located and is shown in detail in Figs. 20 and 21.

If desired, means may be provided for locking the printing-wheel in a given position while printing is being done, as shown in this instance, said locking means being actuated by the movement of the longitudinally-movable rod 15, actuated by the printing-magnet Q. As the arm 18 is rocked with the shaft 19, another arm, 69, is rocked, and connections are provided for moving a pawl 70 into engagement with the ratchet-wheel 71, fast to the revoluble vertical shaft H.

i In order to prevent jarring and derangement of the parts when the 1,)aper-earriage is returned, I provide a dash-pot 72 for the paper carriage. The plunger 7 3 is movable within the dash-pot 72, and a spring- 'n'essed piston or plunger rod 74 is connected to the paper-carriage, whereby when the paper-earriage is retracted the plunger-rod 7 4 impinges against the plunger 73, and the carriage is cushioned by the dash-pot 72. As shown, the plunger 73 is not connected to the plungerrod 74, and means are provided for withdra\\' ing the plunger from the bottom of the dashpot as the paper-carriage is fed forward, in this instance the plunger being made hollow and provided with an inwardly extending flange 75. with which a hook 76 on the plunger-rod 74 is adapted to cooperate. As the rod 74 moves into the dash-pot 72 it rides upon a projection 77, raisingthehook 76, so that when the carriage is fed forward the hook engages the flange 75 and withdraws the plunger.

According to my construction the typewheel I is provided with two sets of type or characters, an upper and a lower set, from either of which the printing may be effected, as desired. In order to be able to print from either set of type on the wheel, provision is afforded for raising and lowering the typener shaft L is vertically movable, and means are provided for moving it vertically to bring either set of type into position for printing. In the position of the parts shown in Fig. 1 the lower set of type is in position for printing, as shown, the vertical shaft L resting upon the arm 78,.extending from the arma ture 79, controlled by the type-wheel-lifting magnet T. The armature 7 9 is held in position to maintain the shaft L raised by suitable means (shown as a latch 80) uponthe armature 81, .pivoted at 83 and adapted to be attracted by-the releasing-magnet U against the tension of the spring 82- When the magnet U is energized, it attracts its armature 81,- thusraising the latch 80 and releasing the ar mature 79, which permits the shaft L to move I downward by reason of its own weight'and latch 80 falls into position and maintains the bring the upper set of type opposite the printing-hammer J. The adjustable stops 84 limit the downwardmovement of the arm 7 8 and permit the extent of movement of the shaft L to be adjusted. .In order to. raise the typewheel again, themagnet T is energized, attracting-its armature. 7 9 and raising the shaft L. Then'the magnet U is deenergized,and the armature 79 in. a raised po'sition after the typewheel lifting magnet Tghas: become *dener gized, v 7

Suitable means are provided for spacing without printing, and for this purpose 'a lock is provided for preventing the printing-hammer from striking the'typewheel when desired and foras long a time as desired, so that-the requisite spacing "may be efiected without printing. Ihave shown a magnet. V,

controlling an armature. 85, pivoted at 86 and normally retracted-bya spring 87. When the spacing-magnet. V is energized, its armature is attracted-and .a latch 88 moved into po-- Sitio'n to cooperate with a stop 89on the print-- ing-hammer J to prevent the hammer from beingactuated to effect printing. The latch 88 is heldagainst astop 90 on a bracketproj ecting from the frame of the machine and effectually prevents the operation of the print- ,ing-hammer.

The latch 88 is restored to its normal position to permit printingto be effected by being removed from engagement with thestops89 and 90..

, Anysuitable circuits and connections may be provided for operatingmy improvedprinting-telegraph receiver, for it will be obvious to those skilled. in the art that various different arrangements of circuits may be devised for-effecting the-operation and controlof the apparatus in the desired manner. I v If desired, the circuits and apparatus Inv the apparatus shown and described in that patenta distinctive I series of electrical impulses is employed for effecting the printing, of each letter or character, and according to.

my present invention such a distinctive series of electrical impulses may beprovided for controllingxeach letter-selecting magnet D and also for controlling each remaining opcrating-magnet of the receiver. The electric fully disclosedin my United States Patent No.- 673,315, granted April 30, .1901, may be util; ized' in connectionwith my present invention.

able into and out of the path of rotation connections, however, form no part'of my present invention and need riot be further re ferred to, especially'since the method of operation shown and described in, my former patent referred to'is but one of many methods of operating my improved receiver.

To recapitulate the operation of the'a'ppaf ratus, it will be assumed thatthe parts of the receiver are inthe position shown in the drawings, with thetyp'e-wheel in readinessto print from the lower setof letters or characters. The paperletter-selecting magnetD is energized by any suitable means, while at the same time the arm G is released and moved against the stop E of the magnet energized,

which brings the required letter or character opposite the printing-hammer J. The printjing-magnet Q is then energized, and the hammer J is actuated to efiect the printing through the mechanism he'reinbefore fully described.

On' the back stroke of the armature a of the printing-magnet Q the paper-carriage isfed forward onestep for letter-spacing, and the inking-ribbon is fed to bring afresh portion thereof opposite 'the printing hammer or platen. It will .beobserved that as the paper carriage is fed forward for letter-spacing its revtracted spring 30 is being wound upstep 'by step in'readiness for retracting the carriage when desired. The operations above described, are continued until it is desired to begin a new line, in which casethe carriage return magnet R is energized, and the clutch restraining the I paper-carriage isdisengaged to permit the return of the carriage under the influence of the spring.

the'sp'ace of one line, as hereinbefore fullydescribed. =Each time that a magnet D is en-2 ergized the pin trip-magnet P should be energized in order, as stated, to insure a positive movement of the plate a to permit the pinsE to move freely. The' winding-magnet K may be suitably controlled by keeping the spring g on a tension. If it isdesired-to effect spac ing along a line'withoutprinting; the spacing- For line-spacing the paper-feed ing magnet is energized, and the paper is fed magnetV is energized to prevent the opera 'construction shown and described nor enu meratingequivalents, I claim, and desire to 7 obtain by Letters Patent, the following:

1. In aprinting-telegraph receiver, the combination of a rotary type wheel shaft and type-wheel, an arm extending from said shaft and rotatable therewith, a series of stops movsaid arm, eleetromagnets for actuating said stops, and means for locking all of said stops from operation including the one actuated after one has been actuated, for substantially the purposes set forth.

- and rotatable therewith, stops movable into and out of the path of rotation of said arm, electromagnets for actuating said stops, means for locking the remainder of the stops after one has been actuated, and means independent of the stops for releasing all of them at once,-

- for substantially the purposes set forth.

4. In a printing-telegraph receiver, the combination with a rotary type-wheel shaft and type-wheel, an arm extending from said shaft and rotatable therewith, stops movable into and out of the path of rotation of said arm, electromagnets for' positively projecting the stops forward into the path of rotation of said arm, and means for locking the remainder of the stops and also the stop projected forward, for substantially the purposes set forth.

5. In a printing-telegraph receiver, the combination of a centrally-arranged rotary typewheel shaft and type-wheel, an arm connected to rotate the said shaft, a stationary disk or plate, pins or stops passing through said disk or plate and guided thereby, collars on said pins, means for actuating said pins, and another disk or plate adapted to be moved relatively to the stationary plate to lock said pins, for substantially the purposes set forth.

6. In a printing-telegraph receiver, the combination of a rotary type-wheel shaft and type- 'wheel, an arm connected to move with said shaft, stationary and movable disks or plates, a series of stops passing through said plates and adapted to be projected into the path of' movement of said arm, and collars on said stops, whereby the stops may be locked by the movable plate, for substantially the purposes set forth.

7. In a printing-telegraph receiver, the combination with a type-wheel and shaft and a hammer or platen, of means for actuating the platen, an dmeans for actuating the type-wheel shaft, and an electromagnet for preventing the operation of the hammer to permit'spacing without'printing,for substantially the purposes set forth.

8. In a printing-telegraph receiver, the'combination of a type-wheel shaft and type-wheel, printing mechanism, a printing-magnet and operative connections for actuating the printing mechanism as the magnet is energized, a paper-carriage and a retracting-spring therefor, and means for winding said spring as the printing-magnet is deenergized, for substantially the purposes set forth.

9. In a printing-telegraph receiver, the combination of a type-wheel shaft and type-wheel, printing mechanism, a printing-magnet, a pivoted armature and paper-carriage, a retracting-spring therefor, a rod pivotally connected at one end to said armature and connected to actuate the printing mechanism as the magnet is energized,a ratchet-wheel connected to wind the paper-carriage spring, and a pawl on said rod arranged to actuate the ratchet-wheel as the armature of the printing-magnet is retracted, for substantially the purposes set forth.

10. In a printing-telegraph receiver, the combination of a type-wheel shaft and typewheel, printing mechanism, a printing-magnet, and operative connections for actuating the printing mechanism as the magnet is energized, a paper carriage and a retractingspring therefor, an inking-ribbon, and means for winding said spring and for feeding said inking-ribbon as the printing-magnet is deenergized, for substantially the purposes set forth.

11. In a printing-telegraph receiver, the combination of a type-wheel shaft and typewheel, printing mechanism, a printing-magnet and operative connections for actuating the printing mechanism as the magnet is energized,-a paper-carriage and a retractingspring therefor, means for winding said spring as the printing-magnet is deenergized, and an independent magnet for releasing said spring to retract the paper-carriage, for substantially the purposes set forth.

12. In a printing-telegraph receiver, the combination with a paper-carriage and means for retracting the same, of a dash-pot, a plunger movable therein, and a plunger-rod connected to move with the paper-carriage and loosely connected to the plunger, said plunger-rod being constructed to move the plunger outward in the dash-pot, upon the outward movement of the paper-carriage, for

substantially the purposes set forth.

13. In a printing-telegraph receiver, the combination with a paper-carriage and means for retracting the same, of a dash-pot, a plunger movable therein, and a spring-pressed plunger-rod pivotally connected to the papercarriage and adapted to engage-the plunger upon the outward movement of the plungerrod, whereby said dash-pot and plunger cushion the paper-carriage each time it is retracted, for substantially the purposes set forth.

14. In a printing-telegraph receiver, the combination of a paper-carriage having a vertically-movable bar, rollers for holding the paper, a paper-feeding magnet and armature,

a pivoted bent lever connected to be actuated vertically by said armature, the lever extending over the bar on the'paper-carriage, operative. connections between the said bar and the rollers for feeding the paper, and devices actuated by said bent lever and bar for pre' venting t e paper from being fed more than the desired space for one line,'for substantially the purposes setforth. 15. In a printing-telegraph receiver, the combination of a revoluble sleeve and a shaft loose therein, a type-wheel on said shaft having a plurality of sets of characters, provision being afforded for connecting the wheel to rotate with the sleeve, a platen, an electromagnet for moving the shaft longitudinally,

and a locking-magnet with connections for locking the shaft in the desired longitudinal position to bring either set of characters of the type-wheel into operative relation with 20 GEORGE ALEXANDER CARDWELL.

Witnessesz E. VAN ZANDT, A. L. OBRIEN. 

